Delta SkyMiles award flights from Seattle (SEA) to London City (LCY)
Explore these award routes
Preview matching cached flight results on these routes, then search live for your own trip.
In the last 30 days AwardTool saw Delta SkyMiles award space for SEA→LCY in economy, premium economy, business class and first class. Lowest economy: 29,400 miles + $43.30 (economy space on 24 dates). Lowest business class: 305,000 miles + $43.30 (business-class space on 5 dates). Lowest first class: 305,000 miles + $43.30 (first-class space on 11 dates).
Prices observed – ; newest observation .
Page regenerated from the Oct 19, 2026 data snapshot (normally daily). Summary last changed . Seats change quickly.
- Lowest economy
- 29,400 miles + $43.30
- economy space on 24 dates
- Lowest business class
- 305,000 miles + $43.30
- business-class space on 5 dates
- Lowest first class
- 305,000 miles + $43.30
- first-class space on 11 dates
- Lowest premium economy
- 87,100 miles + $44.10
- premium economy space on 7 dates
SkyMiles award prices by cabin
The lowest one-way Delta SkyMiles award AwardTool observed on SEA→LCY in each cabin, in miles plus taxes.
| Cabin | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| Economy | 29,400 miles + $43.30 | 1 stop | Delta Air Lines (DL), KLM (KL) | 9+ | 24 | See dates | |
| Premium Economy | 87,100 miles + $44.10 | 2 stops | Delta Air Lines (DL), KLM (KL) | 9+ | 7 | See dates | |
| Business | 305,000 miles + $43.30 | 1 stop | Delta Air Lines (DL), KLM (KL) | 7 | 5 | See dates | |
| First | 305,000 miles + $43.30 | 2 stops | Delta Air Lines (DL), KLM (KL) | 5 | 11 | See dates |
Not seen means AwardTool hasn't observed this cabin on this route in the last 30 days. It doesn't mean the airline has no seats. Dates seen counts departure dates with an open award in that cabin at any price; newest observation is the latest time AwardTool saw one of them. Seats is the count the program reported when we observed it; some programs report at most 9.
Observed SkyMiles award examples
| Departure | Cabin | Points + taxes | Seats | Stops | Observed (UTC) | |
|---|---|---|---|---|---|---|
| Economy | 37,200 miles + $44.10 | 9+ | 1 stop | Check this date | ||
| Economy | 66,300 miles + $44.10 | 9+ | 2 stops | Check this date | ||
| Economy | 415,200 miles + $43.60 | 9+ | 2 stops | Check this date | ||
| Premium Economy | 170,500 miles + $44.10 | 4 | 2 stops | Check this date | ||
| Premium Economy | 265,700 miles + $44.10 | 5 | 1 stop | Check this date | ||
| Business | 499,900 miles + $44.10 | 6 | 1 stop | Check this date | ||
| First | 389,500 miles + $43.60 | 3 | 2 stops | Check this date | ||
| First | 407,500 miles + $44.10 | 7 | 2 stops | Check this date |
Prices are one-way per traveler: the program's points or miles plus taxes and carrier fees in USD, as AwardTool observed them in the observation window. Award space changes constantly. A seat we saw may be gone, and space we haven't seen may exist. Always confirm with a live search before transferring points; most transfers can't be reversed.
How often SkyMiles award space showed up
Departure dates in the next 365 days that AwardTool checked for Delta SkyMiles in the last 30 days, how many had award space in each cabin at any price, and the latest departure with space.
| Cabin | Dates with space | Share of dates checked | Latest departure with space |
|---|---|---|---|
| Economy | 24 of 60 | 40% | |
| Premium Economy | 7 of 60 | 11% | |
| Business | 5 of 60 | 8% | |
| First | 11 of 60 | 18% |
Best months to fly from Seattle (SEA) to London City (LCY) with SkyMiles
| Month | Economy | Premium Economy | Business | First |
|---|---|---|---|---|
| 37,200 (3 dates) | 170,500 (2 dates) | 499,900 (1 date) | 407,500 (1 date) | |
| 415,200 (5 dates) | — | — | 389,500 (4 dates) | |
| 33,000 (1 date) | 87,100 (1 date) | 344,100 (1 date) | 344,100 (1 date) | |
| 29,400 (3 dates) | 89,600 (3 dates) | 305,000 (2 dates) | 305,000 (3 dates) | |
| 38,900 (9 dates) | 261,300 (1 date) | 364,500 (1 date) | 566,200 (1 date) | |
| 113,800 (1 date) | — | — | 488,500 (1 date) | |
| 74,400 (2 dates) | — | — | — |
How to get SkyMiles
- American Express Membership Rewards: 1:1 · Instant
Check current transfer bonuses. Most transfers can't be reversed.
SkyMiles vs other programs from Seattle (SEA) to London City (LCY)
Lowest one-way award per program and cabin on this route.
| Program | Economy | Premium Economy | Business | First |
|---|---|---|---|---|
| Air Canada Aeroplan | 42,500 pts + $127.41 | 127,681 pts + $129.11 | 86,479 pts + $161.11Mixed cabin | — |
| Air France/KLM Flying Blue | 33,000 pts + $190.50 | 60,000 pts + $279.80 | 139,500 pts + $378.00 | — |
| Alaska Atmos Rewards | 42,500 pts + $37.00 | — | 110,000 pts + $47.80Mixed cabin | 85,000 pts + $47.40Lowest |
| American Airlines AAdvantage | 21,000 pts + $5.60Lowest | 40,000 pts + $533.50Lowest | 57,500 pts + $733.50Lowest | 131,500 pts + $5.60 |
| Delta SkyMiles | 29,400 pts + $43.30 | 87,100 pts + $44.10 | 305,000 pts + $43.30 | 305,000 pts + $43.30 |
| United MileagePlus | 44,000 pts + $30.40 | 55,000 pts + $30.70 | 88,000 pts + $30.40Mixed cabin | — |
Questions about SkyMiles award flights from Seattle (SEA) to London City (LCY)
How many miles do you need to fly from Seattle (SEA) to London City (LCY) with Delta SkyMiles?
The lowest one-way Delta SkyMiles awards AwardTool observed in the last 30 days: economy 29,400 miles + $43.30, with a typical monthly low of 38,900 miles over 7 months and award space on 24 departure dates (newest observation Oct 17, 2026); premium economy 87,100 miles + $44.10, with a typical monthly low of 89,600 miles over 4 months and award space on 7 departure dates (newest observation Oct 14, 2026); business class 305,000 miles + $43.30, with a typical monthly low of 344,100 miles over 4 months and award space on 5 departure dates (newest observation Oct 14, 2026); first class 305,000 miles + $43.30, with a typical monthly low of 389,500 miles over 6 months and award space on 11 departure dates (newest observation Oct 14, 2026). Monthly lows varied in economy (29,400 to 415,200 miles), premium economy (87,100 to 261,300 miles), business class (305,000 to 499,900 miles) and first class (305,000 to 566,200 miles), so the award on your dates may cost more. Search live before transferring points.
What's the lowest SkyMiles award from Seattle (SEA) to London City (LCY)?
In economy, 29,400 miles + $43.30. Delta SkyMiles showed economy award space on 24 departure dates at any price (newest observation Oct 17, 2026, 23:44 UTC). In business class, 305,000 miles + $43.30. Delta SkyMiles showed business-class award space on 5 departure dates at any price (newest observation Oct 14, 2026, 18:11 UTC). Search live before transferring points.
Can you book nonstop awards from Seattle (SEA) to London City (LCY) with SkyMiles?
AwardTool hasn't observed nonstop Delta SkyMiles award space on this route in the last 30 days. That doesn't mean nonstop space never appears.
Which credit card points can book SkyMiles awards from Seattle (SEA) to London City (LCY)?
American Express Membership Rewards (1:1, Instant). Check current transfer bonuses; most transfers can't be reversed.
Which months had the lowest SkyMiles award prices from Seattle (SEA) to London City (LCY)?
Counting only month prices from programs with award space on 2 or more dates that month, and leaving out unusually low outliers, the lowest economy award AwardTool observed was for Feb 2027 departures: 29,400 miles (3 dates). The month table shows every lowest price, including those. Based on dates we observed, not a forecast.